how i built water level gauge using LM3914 and connect it to chinese water level sensor 

#diy #campervanbuild #diycampervan
how i built water level gauge using LM3914 and connect it to chinese water level sensor. Sounds simply ? yes it should be simply but i wasn't.
finally works (more or less) but definitely these sensors are not dedicated to such a circuits with LM3914 . especially my case where sensor recognize 7 levels and LM3914 drive 10 bar bargraph.
lenghty video with full proces full of faults nearly on each stage and debugging. This water level gauge will be fitted in my diy ducato campervan